Biology MCQ

The sequential order in electron transport from PSII to PSI of photosynthesis is

In presence of high concentration of oxygen, RuBP carboxylase converts RuBP to …………… .

For fixing one molecule of C02 in Calvin cycle are required.

The net result of photo-oxidation of water is release of ……………. .

The head and tail of chlorophyll are made up of

In maize and wheat, the first stable products formed in bundle sheath cells respectively are

For fixation of 6 molecules of C02 and formation of one molecule of glucose in Calvin cycle, requires

Non-cyclic phosphorylation differs from cyclic photophosphorylation in that former

Which one is wrong in photorespiration?

Energy is transferred from the light reaction step to the dark reaction step by

A cell that lacks chloroplast does not

With reference to factors affecting the rate of photosynthesis, which of the following statements are NOT correct?

In members of family Crassulaceae ________ is regenerated from starch during night.

Phosphoenol pyruvate (PEP) is the primary CO2 acceptor in:

Dark reaction of photosynthesis is a cyclic process as _______ is regenerated.

Cyclic photophosphorylation will NOT take place in the absence of ________ .

Which one of the following is an essential factor for photophosphorylation?

The highest rate of Photosynthesis in green plants are in _____ and ______ region of light spectrum.

A part of photosynthetically fixed CO2 goes back to the atmosphere due to _______.

Which of the following is NOT a product of light reaction of photosynthesis?

During cyclic photophosphorylation, formation of ATP occurs between which of the following two compounds?

The co-enzyme which acts as hydrogen acceptor during light reaction is ________ .

Clil-a and Chl-b shown maximum absorption in ________ regions of visible light.

One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of:

In Hatch and Slack pathway, the primary C02 acceptor is _______________ .

Which of the following factors is not limiting?

CAM plants are mostly ________________ .

Due to photorespiration, approximately __________ of photosynthetically fixed C02 is lost.

Which one of the following is C4 plant?

In C4 pathway, fixation of metabolic C02 occurs in which of the following cells?

The first C02 acceptor in C4 pathway is _______ .

How many Calvin cycles are required to produce one molecule of glucose?

Which of the following is a biochemical reaction?

Which of the following is a photochemical reaction?

In dark reaction, the first compound to accept C02 is ___________ .

Dark reaction takes place in _____________ .

Light reactions occur in ______________ .

The reaction centre of PS-II is ________ .

Which of the following is not an accessory pigment?

From the visible spectrum of light, which component is reflected by the green leaves?

Photosynthesis is minimum in _______ light.

Photosynthesis is ________ reaction.

How many ATP molecules are required for synthesis of one glucose molecule using C4 pathway?